Yes, you can use the Fusion Backup & Restore service: https://www.ibm.com/docs/en/storage-fusion/2.6?topic=protection-backup-restore
The OpenShift cluster doesn't have to be a Fusion HCI, the Fusion Backup & Restore service can be installed and utilized in any OpenShift cluster afaik. The service performs local snapshots and/or offloads backups to an IBM Storage Protect server via its S3 interface.